pyrox.dev
1# Disnix server
2{ config, lib, pkgs, ... }:
3
4with lib;
5
6let
7
8 cfg = config.services.disnix;
9
10 dysnomia = pkgs.dysnomia.override (origArgs: {
11 enableApacheWebApplication = config.services.httpd.enable;
12 enableAxis2WebService = config.services.tomcat.axis2.enable;
13 enableEjabberdDump = config.services.ejabberd.enable;
14 enableMySQLDatabase = config.services.mysql.enable;
15 enablePostgreSQLDatabase = config.services.postgresql.enable;
16 enableSubversionRepository = config.services.svnserve.enable;
17 enableTomcatWebApplication = config.services.tomcat.enable;
18 enableMongoDatabase = config.services.mongodb.enable;
19 });
20in
21
22{
23
24 ###### interface
25
26 options = {
27
28 services.disnix = {
29
30 enable = mkOption {
31 default = false;
32 description = "Whether to enable Disnix";
33 };
34
35 useWebServiceInterface = mkOption {
36 default = false;
37 description = "Whether to enable the DisnixWebService interface running on Apache Tomcat";
38 };
39
40 publishInfrastructure = {
41 enable = mkOption {
42 default = false;
43 description = "Whether to publish capabilities/properties of this machine in as attributes in the infrastructure option";
44 };
45
46 enableAuthentication = mkOption {
47 default = false;
48 description = "Whether to publish authentication credentials through the infrastructure attribute (not recommended in combination with Avahi)";
49 };
50 };
51
52 infrastructure = mkOption {
53 default = {};
54 description = "List of name value pairs containing properties for the infrastructure model";
55 };
56
57 publishAvahi = mkOption {
58 default = false;
59 description = "Whether to publish capabilities/properties as a Disnix service through Avahi";
60 };
61
62 };
63
64 };
65
66
67 ###### implementation
68
69 config = mkIf cfg.enable {
70 environment.systemPackages = [ pkgs.disnix pkgs.dysnomia ] ++ optional cfg.useWebServiceInterface pkgs.DisnixWebService;
71
72 services.dbus.enable = true;
73 services.dbus.packages = [ pkgs.disnix ];
74
75 services.avahi.enable = cfg.publishAvahi;
76
77 services.tomcat.enable = cfg.useWebServiceInterface;
78 services.tomcat.extraGroups = [ "disnix" ];
79 services.tomcat.javaOpts = "${optionalString cfg.useWebServiceInterface "-Djava.library.path=${pkgs.libmatthew_java}/lib/jni"} ";
80 services.tomcat.sharedLibs = optional cfg.useWebServiceInterface "${pkgs.DisnixWebService}/share/java/DisnixConnection.jar"
81 ++ optional cfg.useWebServiceInterface "${pkgs.dbus_java}/share/java/dbus.jar";
82 services.tomcat.webapps = optional cfg.useWebServiceInterface pkgs.DisnixWebService;
83
84 users.extraGroups = singleton
85 { name = "disnix";
86 gid = config.ids.gids.disnix;
87 };
88
89 services.disnix.infrastructure =
90 optionalAttrs (cfg.publishInfrastructure.enable)
91 ( { hostname = config.networking.hostName;
92 #targetHost = config.deployment.targetHost;
93 system = if config.nixpkgs.system == "" then builtins.currentSystem else config.nixpkgs.system;
94
95 supportedTypes = (import "${pkgs.stdenv.mkDerivation {
96 name = "supportedtypes";
97 buildCommand = ''
98 ( echo -n "[ "
99 cd ${dysnomia}/libexec/dysnomia
100 for i in *
101 do
102 echo -n "\"$i\" "
103 done
104 echo -n " ]") > $out
105 '';
106 }}");
107 }
108 #// optionalAttrs (cfg.useWebServiceInterface) { targetEPR = "http://${config.deployment.targetHost}:8080/DisnixWebService/services/DisnixWebService"; }
109 // optionalAttrs (config.services.httpd.enable) { documentRoot = config.services.httpd.documentRoot; }
110 // optionalAttrs (config.services.mysql.enable) { mysqlPort = config.services.mysql.port; }
111 // optionalAttrs (config.services.tomcat.enable) { tomcatPort = 8080; }
112 // optionalAttrs (config.services.svnserve.enable) { svnBaseDir = config.services.svnserve.svnBaseDir; }
113 // optionalAttrs (config.services.ejabberd.enable) { ejabberdUser = config.services.ejabberd.user; }
114 // optionalAttrs (cfg.publishInfrastructure.enableAuthentication) (
115 optionalAttrs (config.services.mysql.enable) { mysqlUsername = "root"; mysqlPassword = readFile config.services.mysql.rootPassword; })
116 )
117 ;
118
119 services.disnix.publishInfrastructure.enable = cfg.publishAvahi;
120
121 systemd.services = {
122 disnix = {
123 description = "Disnix server";
124 wants = [ "dysnomia.target" ];
125 wantedBy = [ "multi-user.target" ];
126 after = [ "dbus.service" ]
127 ++ optional config.services.httpd.enable "httpd.service"
128 ++ optional config.services.mysql.enable "mysql.service"
129 ++ optional config.services.postgresql.enable "postgresql.service"
130 ++ optional config.services.tomcat.enable "tomcat.service"
131 ++ optional config.services.svnserve.enable "svnserve.service"
132 ++ optional config.services.mongodb.enable "mongodb.service";
133
134 restartIfChanged = false;
135
136 path = [ pkgs.nix pkgs.disnix dysnomia "/run/current-system/sw" ];
137
138 environment = {
139 HOME = "/root";
140 };
141
142 preStart = ''
143 mkdir -p /etc/systemd-mutable/system
144 if [ ! -f /etc/systemd-mutable/system/dysnomia.target ]
145 then
146 ( echo "[Unit]"
147 echo "Description=Services that are activated and deactivated by Dysnomia"
148 echo "After=final.target"
149 ) > /etc/systemd-mutable/system/dysnomia.target
150 fi
151 '';
152
153 script = "disnix-service";
154 };
155 } // optionalAttrs cfg.publishAvahi {
156 disnixAvahi = {
157 description = "Disnix Avahi publisher";
158 wants = [ "avahi-daemon.service" ];
159 wantedBy = [ "multi-user.target" ];
160
161 script = ''
162 ${pkgs.avahi}/bin/avahi-publish-service disnix-${config.networking.hostName} _disnix._tcp 22 \
163 "mem=$(grep 'MemTotal:' /proc/meminfo | sed -e 's/kB//' -e 's/MemTotal://' -e 's/ //g')" \
164 ${concatMapStrings (infrastructureAttrName:
165 let infrastructureAttrValue = getAttr infrastructureAttrName (cfg.infrastructure);
166 in
167 if isInt infrastructureAttrValue then
168 ''${infrastructureAttrName}=${toString infrastructureAttrValue} \
169 ''
170 else
171 ''${infrastructureAttrName}=\"${infrastructureAttrValue}\" \
172 ''
173 ) (attrNames (cfg.infrastructure))}
174 '';
175 };
176 };
177 };
178}